Mold foe casting wheels



(No Model.)

J'. W. HILL.

MOLD FOR CASTING WHEELS.

Patented July 30, 1889.

5 Sheets-Sheet 1.

(No Model.) 5 SheetsSheet 2. J. W. HILL.

MOLD POR CASTING WHEELS.

No. 408,105. Patented July 30, 1889.

n.; A I E fill (.No Model.) 5 Sheets-Sheet 3. J. W. HILL. MOLD PORCASTING WHEELS.

No. 408,105. Patented July 30, 1889..

33. %ye7m" 5 Sheets-Sheet 4.

(No Model.)

J. W. HILL.

MOLD POR CASTING WHEELS.

Patented July 30, 1889.

5 Sheets-Sheet 5.

(No Model.)

J. W. HILL. Y MOLD POR CASTING WHEELS.

Patented Tu-1y 30, 1889..

FIG XIII- NA PETERS. Pholithographer, Waxhnghm. D4 C UNITED STATESPATENT OEEICE.

JAMES IV. IIILL, OF PEORIA, ILLINOIS, ASSIGNOR T() THE PEORIA PULLEV ANDIHEEL COMPANY, OF SAME PLACE.

MOLD FOR CASTING WHEELS.

SPECIFICATION forming part'of Letters Patent No. 408,105, dated July 30,1889.

Application filed February 18, 1889. Serial NaSOOGZ, (No model.)

T @ZZ whom t may concern:

Be it known that I, JAMES IV. HILL, a citizen of the United States,residing at Peoria, in the county of Peoria and State of Illinois, haveinvented certain new and useful Improvements in Molds for CastinglVheels, &c., of which the following is a specification.

My invention relates to improvements in molds for casting wheels andpulleys of difio ferent widths; and it consists in certain features ofconstruction, to be hereinafter de scribed, and then particularlypointed out in the claims.

In order that my invention maybe fully i5 understood, I will proceed todescribe the same, reference being had to the accompanying drawings, inwhichm Figure I is a vertical sectional View of my invention, showingthe parts set up ready for 2o casting. Fig. II is a vertical sectionalview of the internal removable parts withdrawn from the mold, the lowersections of the sectional segments remaining' in place, and Fig. III isa vertical sectional view of the remain- 2 5 ing parts. Fig. IV is aplan view of the mold,

the internal removable parts being withdrawn. Fig. V s a top view ofFig. II. Fig. VI is a perspective view of the lower wedgering. Figs.VII, VIII, and IX are details. 3o Fig. X is a vertical section throughthe lower casing-ring. Fig. XI is a vertical sectional view of theinternal parts necessary to replace those shown in the other Iigureswhen the rim is to be cast on two series of spokes.

"3 5 Fig. XII is a perspective view of the support for the inner ends ofthe spokes shown in Fig. XI. Fig. XIII represents another form of devicefor disengaging the hooked rods from the lower wedge-ring, the partsbeing 4o shown in dotted lines. Fig. XIV is an underside view of thebed-plate and said disengaging device turned up at an angle oi' aboutforty-tive degrees.

The casing and support ofthe mold are the same when the rim is to becast onto cit-her a single or double set of spokes, while the internalparts in both instances are differentin most respects.

I will first describe the mold as a whole when used for casting a rimonto a single se- 5o ries of spokes.

1 represents the base, and 2 the legs, on

.which it is supported. i

3 is a broad ring, (which I will designate the base-ring,) through whichare passed bolts at, which also pass through the legs and the outer edgeof the base l, thus securing the legs to the latter. Onto the .lowerends of these bolts are screwed nuts 5. These bolts also pass throughblocks or thimbles 6, 6o interposed between the base-ring 3 and thebase 1. Placed over these blocks and resting just upon the base 1 arecollars 7, between which and said blocks are driven wedges 8, for apurpose to be hereinafter stated. At the inner edge the base-ring 3extends upward, as 3, (see Fig. X,) and in this extended or enlargedportion is formed a dovetail groove 3b, which is inwardly and upwardlyinclined. This groove is filled with a suit- 7o able filling ofrefractory material a, that is of low conductivity of heat and that isnot easily destroyed by the molten metal-such as tire-clay, asbestus,black-lead, ttc. The enlarged inner side of the base-ring 34 iits 75into a rabbet-groove formed in the under side of a ring Q, which in turntits into a rabbetgroove formed in the under side of a similar ring l0,which rests upon it, and these rings 3, 9, and 10, together with anupper ring ll, 8o into a rabbet-groove, in the underI side of which thetop of the ring 10 fits, constitute the casing of the mold'. At itslower inner edge the upper ring ll is provided with a dovetail groove12, which is inwardly and downwardly inclined, and this groove is alsofilled with a refractory substance similarto that in the groove i3 inthe base-ring. Ther exposed surfaces of these refractory fillings may beeither curved, inclined, or otherwise 9o conformated, according to thekind of edge the rim of the wheel is to have. Formed integrally with thetop ring 1l, and extending upwardly therefrom, are the pouring-gates 13.Vents 14; are also formed in this ring. 95

Screwed into the center of the base 1 is a standard 15, onto the lowerend of which is screwed a nut 16. At the upper end of this .shapedsupport 17.

standard is formed a disk-shaped support 17, and extending from theupper end of said standard downwardly is a bore 15, which at its lowerend opens outwardly'through the side of the saine.

The internal parts of the mold proper consist of segments 18, havingwedge-shaped ends, (and so I will term them wedge-segments,) andsectional segments horizontally divided, the upper sections being'numbered 1U and the lower sections 20. These segments are arrangedalternately around the inside of the mold and they form the inner faceof the rim of the wheel being cast. The lower ends of the lower sections2O are provided with inturned flanges 20, which afford a better supportfor these sections than were they formed without them. Now the purposeof the collars 7, before referred to, is to retain these lower sectionsin position iixedly in the mold, and to this end the collars areprovided with screw-threaded pins 7 which are screwed into thesesections, and when the wedges 8 are driven between the collars and thethimbles G these sections 2O will be held rigid, as stated, as they arenot intended to be removed in practice. The upper ends of the lowersections and the lower ends of the upper sections are provided withinturned flanges 21, which are grooved transversely at 21a t0 receivethe outer ends of the spokes. rlhe inner ends of the spokes rest uponthe disk- Connecting the lower sections 20 to the standard 15 are spiralsprings 22.

The bore 15 of the standard 15 constitutes a socket to receive removablya post 23, projecting centrally from the under side of a disk 24. Thepurpose of leading the lower end of this bore or socket outwardly is,that if any dirt be lodged therein it will be forced out by theinsertion of said post. Connecting the upper sections 19 to the disk 24are spiral springs 25.

There are two ringsan upper one 2G and a lower one 27-with wedges 26 and27 cast on the outside thereof, the inclined faces of which engage,respectively, the ripper and lower inclined faces of the wedge-segments.The upper wedge-ring 26 has hooks 28, which engage with projections 29on the upper sections 19 of the sectional segments, while the upper endsof their wedges 2G*L engage with the lips or flanges 30 on the upperends of the wedge-segments 18, and thus when the lifting-chains 31 areraised by suitable power these parts are lifted from thc mold. 'lheseliftin g-chai ns are connected with the hooks 28.

A pair of rods 32, screw-threaded at their lower ends and having eyes attheir upper ends, screw into lugs 32 on the lower wedgering and extendup to t-he top of the mold, and are used in setting' up the mold. Hooksand chains are attached to their upper ends and power is appliedbypulley-blocks or any well-known mean s (not necessary to be shown) tolift the lower wedge-ring into position, eX-

panding the lower ends of the segments 18 and 20 to place. The abuttingedges of the wedge-segments 18 and the alternate sectional segments arebeveled, so that when t-he wedge-segments are forced out they will alsoforce out the alternate sectional segments. The rods 32 are held in theabove-stated manner until the two rods 33, which are screw-threaded attheir upper ends to receive nuts 33, by which they are secured to ring2G, and at their lower ends are hooked, (the hooks 3a engaging theunderside ot' the lower wedge-ring) are adj usted and tightened by meansof said nuts. These hooked rods 33 draw the two wedge-rings toward eachother, and thereby expand the segments against the bottom and top outerrings of the mold. The hooked ends of the rods 33 pass through the baseor bed-plate of the mold, and one of them is connected with atripping-treadle 35 by means of a chain 36, so that it may be disengagedfrom the lower wedge-ring by pressing the treadle with the foot, and theother rod 33 may be released simultaneously by hand, and the removableparts may then n be lifted. Another form of device is shown in Figs.XIII and XIV for this purpose. The hooked end of one of the rods isshownin engagement with a projection l) on a bar ct, which is arrangedunderneath the bed-plate and extends from side to side, one end slidingin a housing` c and the other end being pivoted to one end of abell-crank (l, which is pivoted to the under side of the bed-plate. Thehooked end of the other rod 33 is engaged with `the other end of thebell-crank. rlhe end. of the bar that slides in housing c, it will beseen,projects beyond the bed-plate.

Then this end is struck by a hammer, the

force of the blow, acting through this device, will detach both hooksfrom the lower wedgering simultaneously. Connecting the upper ends ofthe segments is a chain 37, which passes completely around the innerside of the mold and holds the segments together side by side when theyare lifted. Dowelpins 38 on the lower ends of the upper sections of thesectional segments fit into holes in the upper ends of the lowersections. The segments are grooved at 38, so as to form a rib on theinner side of the riin.

In practice a quantity of the intermediate outer rings 0 and 10 areprovided, of different heights, smaller ones being' used when a narrowrim is to be cast. (See Fig. III.) This will necessitate Vthe raising ofthe outer basering 3 according to theheight of the intermediate rings,which is done by interposing TOO IIO

more thimbles or blocks (l between it and t-he bed-plate. I do notrestrict myself to the number of outer rings employed at a singlecasting, as the number maybe varied according to the size of pulley tobe cast. The other parts of the apparatus are suited for all widths ofpulleys.

Figs. XI and XII show means for casting pulleys with two sets of arms.Each alternate segment is cut horizontally on the same plane for one setof spokes. The remaining segments are cut horizontally on a higher orlower plane for the other set of spokes. The other parts of the mold,with the following except-ions, remain the same: The central standard l5has at its upper end a disk 39, having on its rim a series ofprojections 4:0, forming extensions of the flange il. The flange -tlbetween the projections is notched to receive the inner ends of oneseries of spokes, and the upper ends of the projections @t0 are providedwithnotches 42 to receive the inner ends of the other series of spokes.4Provision for four arms in each series is shown; but I do not limitmyself to this number. For holding the segments in line long rods 43 areemployed instead of dowel-pins, and these pass through flanges 4st onthe inner face of each segment, two or more being employed. This isconsidered essential where every seg-v ment is cut in two horizontally.In this form of in old the top sections of each segment only are removedafter the pulley is cast.

IIaving thus described my invention, the following is what I claim asnew therein and desire to secure by Letters Patent:

l. In a mold for wheels and pulleys, the combination of the internalparts and the built-up casin g composed of upper and adjustable lowerand intermediate interchangeable rings, said lower ring having means ofvertical adjustment, whereby rims of different widths may be cast,substantially as set forth.

2. In a mold apparatus, the combination, with the bed-plate and internalparts, of the outer interchangeable rings of different widthsconstituting the casing, interposed block or blocks -between the lowerring and the base-plate, and a fastening for securing the lower ring,blocks, and base-plate together, substantially as set forth.

3. In a mold apparatus for wheels and pulleys, the combination, with thebed-plate and internal removable segments, of the casing made up of aseries of interchangeable rings of different widths, and interposedinterchangeable blocks between the lower ring and thebase-plate, wherebyrims of different widths may be cast, substantially as set forth.

4. In a mold apparatus, the combination, with the bed-plate and theinternal parts, of the casin g consisting of upper and lower rings andinterchangeable intermediate rings and interchangeable blocks interposedbetween the lower ring and the base-plate, substantially as and for thepurpose set forth.

5. In a mold apparatus, the combination, with the bed-plate and theinternal parts, of the outer interchangeable rings constituting thecasing,interchangeableinterposed blocks between the lower ring and thebed-plate, bolts passing through the bed-plate, blocks, and the lowerring, and nuts screwed onto the lower ends of the bolts, substantiallyas set forth.

G. In a mold apparatus, the combination of the casing and the internalsegments, .a series of alternate sections being divided horizontally andprovided with grooves to receive the spokes, substantially as set forth.

7. In a mold apparatus, the combination of the easing, the bed-plate,the internal segments, each alternate one being divided horizontally andprovided with grooves to receive the spokes, interposed blocks betweenthe casing and the bed-plate, suitable means for securing the blocks tothe bed-plate, collars fitting over said blocks and having screwthreadedpins screwing into the lower sections of the divided segments, andwedges driven between the collars and blocks, substantially as and forthe purpose set forth.

8. In amold apparatus, the combinationof the casing consisting of upperand lower rings and interchangeable intermediate rings,

means for supporting the casing at diiferent y heights, and theintermediate segments, every alternate one of which is horizontallydivided and provided with grooves to receive the spokes, substantiallyas and for the purpose set forth.

9. In a mold apparatus, the combination of the casing, thewedge-segments, the alternately-arranged divided segments provided withgrooves to receive the spokes, and means for engaging the inclinedportions of said wedge-segments and expanding all the segmentsoutwardly, substantially as set forth.

lO. In a mold apparatus, the combination of the easing, thewedge-segments, the alternate divided segments provided with grooves torcceive the spokes, the upper and lower wedgerings adapted t-o engagethe inclined portions of the wedge-segments, and devices for forcingsaid wedge-rings toward each other, substantially as set forth.

ll. In a mold apparatus, the combination of the casing, the wholesegments, andthe alternate dividedsegments provided with grooves toreceive the spokes, a central standard, and springs connecting the lowerportions of the divided segments to said standard, substantially as setforth.

I2. In a mold apparatus, the combination of the easing, the wholesegments, the alternate divided segments provided with grooves toreceive the spokes, a central standard having a socket at its upper end,a disk at its top, an upper disk, having a post projecting downwardlyand fitted loosely in said socket, and springs connecting said standardand upper disk to the divided segments, substantially as set forth.

13- In a mold apparatus, the combination of the casing, the wholesegments, the alternate divided segments provided with grooves toreceive the spokes, a central standard having a socket or bore extendingdownwardly and out through its side, a disk at the top of t-he standard,an upper disk having' a post projecting downwardly and fitted looselyin.

IOO

IIO

said socket or bore, and devices connecting said standard and upper`disk to the divided segments, substantially as set forth.

14. In a mold apparatus, the combination ot the casing, the wholesegments the alternate divided segments provided with grooves to receivethe spokes, the upper and lower inner rings having means for securingthem together and forcing said segments outwardly, projections on theupper ring, and projections on said segments, with which the latterengage, substantially as and for the purpose set forth.

15. In a mold apparatus, the combination of the casing, the innerseglnents having projections, the lifting-chains, a ring suspendedthereby, and projections on said ring engaging the projections on thesegments, substantially as set forth.

,16. In a mold apparatus, the combination of the casing, the wholesegments, the alternate divided segments provided with grooves toreceive the spokes, the lower portions of which are fixed, a chainconnecting the upper ends of the whole segments and .the upper dividedsegments together, and means for lifting the former and latter,substantially. as set forth.

17. In a mold apparatus, the combination of the casing, the innersegments, alternate ones oi" which have wedge-shaped ends, wedgeringsengaging said ends, hooked rods secured at their upper ends to the upperwedgering, the hooked ends engaging the under side of the lowerwedge-ring, and means for releasing the hooks of said rods from thelower wedge-ring, substantially and for t-he purpose set forth.

I8. In a mold apparatus, the combination of the casing, the innersegments, alternate ones of which have wedge-shaped ends, wedgeringsengaging said ends, hooked rods secured at their upper ends tothe upperwedgering, the hooked ends engaging the under side of the lower ring, asliding bar having a projection engaging' one of the hooks, and abell-crank, to one end of which said bar is pivoted, the other end ofsaid bell-crank having engagement with the other hook, substantially asand for the purpose set forth.v

JAS. W. HILL.

Witnesses:

E. C. ELY, GEO. H. FORBES.

